单项选择题
A. Replace all components simultaneously to ensure that the system is functional.
B. Replace all hardware associated with the problem first to eliminate the possibility of hardware and move onto software
C. Purchase new parts for the system to confirm that they function.
D. Implement one change at a time, reversing the change if it has not resolved the problem.
单项选择题 There is a power outage and all servers are shut down properly by the uninterruptible power supply (UPS) software. When one of the servers starts up it displays a logical drive failed error. This server has two processors, 16GB of memory, and a RAID 5 array with 10 drives. Which of the following is the MOST likely cause?（）
单项选择题 Anadministratorneedsthefastestread/writecapabilitieswiththemostredundancy，costisnotafactor.Thecurrentdatarequirementis750GBbutwilldoubleinthenextyear.Whichofthefollowing BESTmeetstheserequirements？（）
单项选择题 A datacenter has exceeded the load on the central uninterruptible power supply (UPS) for the room and is causing power load problems. Additional power is available, but not using the central UPS. Which of the following is the BEST temporary solution for adding new servers until an upgrade of the central UPS can occur?（）